html, body, div {
    margin: 0;
    padding: 0;
}
html, body {
    height: 100%;
}

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.ml-5 {
    margin-left: 5px;
}
.mr-5 {
    margin-right: 5px;
}
.pd-10 {
    padding: 10px 0;
}

.m-10 {
    margin: 10px 0;
}

a {
    text-decoration: none;
    color: #666;
}
